California Code, Insurance Code - INS § 5053

The duly executed articles of incorporation and a copy of the certificate of the commissioner shall be filed with the Secretary of State in conformity with Section 200 of the Corporations Code.  Upon organizing under the articles of incorporation and obtaining from the commissioner a certificate of authority, the county mutual fire insurer may carry on a fire insurance business as provided by this chapter.  The term and nature of the certificate of authority, annual renewal fee therefor, the due date and delinquent date of the fee shall be the same as prescribed by Article 3 (commencing with Section 699) of Chapter 1 of Part 2 of Division 1 for stock and mutual insurers governed by that article.